| 宋保永,胡振兴,孙璟,刘朋朋,汤忠斌,索涛*.膨胀管分离装置分离时间测试研究[J].实验力学,2015,30(2):151~156 |
| 膨胀管分离装置分离时间测试研究 |
| On the Measurement of the Separation Time of Expanding Tube Separation Device |
| 投稿时间：2014-09-09 修订日期：2014-12-30 |
| DOI：10.7520/1001-4888-14-174 |
| 中文关键词: 膨胀管分离装置 同步性 测试 |
| 英文关键词:expanding tube separation device synchronicity measurement |
| 基金项目:国家自然科学基金(No.11272267, 11102168), 教育部和国家外专局“111”创新引智计划(B07050)资助 |
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| 中文摘要: |
| 本文采用裂纹扩展计和超动态应变测试相结合的方法，对炸药索的传爆速度及分离结构响应断裂时间进行了实验研究。同时，还分析了内外分离板分离的同步性、两端起爆的同步性。结果表明：对于本文测试的分离结构，其内外分离板分离的同步性较好，滞后时间仅1μs；扁平管接收到爆轰信号到分离板断裂的时间差约为6μs；尽管采用两端起爆，但是实际中由于火工品的差异，并不能够实现两端完全同步起爆，滞后时间长达50μs。 |
| 英文摘要: |
| Explosion velocity of booster explosive and separation structure response rupture time were experimentally studied by using a combining measurement method of resistance wire grid and super dynamic strain gauge. Meanwhile, separation synchronicity of both inner and outer separation plates as well as the synchronicity of explosion at both ends of separation structure were also analyzed based on the experimental results. Experimental results show that both inner and outer separation plates present good separation synchronicity with only 1μs lag time. The delay time from the moment of receiving detonation signal to separation plate rupture is about 6μs. However, it was found that there is 50μs lag time in the two ends initiation of separation structure. So, the synchronicity of explosion at both ends of separation structure is poor. |
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